I am booting a Windows 8 PC into Chrome with "--kiosk" added to the path so I have kiosk mode enabled. Now I need to disable every key that would allow the user to exit the kiosk mode. So far I have identified:

All function keys F1 to F12

Alt-Key (e.g. Alt+Tab)

Windows Key

Ctrl+Alt+Delete will be disabled by Group Policy (gpedit.msc and then navigating to User Config > Admin Templates > System > Ctrl+Alt+Del options).
Do you see more key combinations that would allow a user to exit other than this?

What script would I need to disable the 3 combinations above and how would I create a prompt for a pin code dialogue in AutoHotkey, like we press Alt+F7 and now we have to enter a 6 digit pin to unlock the keys and Alt+F8 to lock the keys?